<template>
    <div class="app-container">
        <!-- 顶部 Header 区域 -->
        <mt-header fixed title="fixed top">
            <span slot="left" @click="goBack" v-show="flag">
                <mt-button icon="back">back</mt-button>
            </span>
        </mt-header>
        <!-- 中间 路由 router-vue 区域 -->

        <!-- 底部 Tabbar 区域 -->
        <h1>这是一个App组件</h1>
           <transition>
               <router-view></router-view>
           </transition>

        <nav class="mui-bar mui-bar-tab">
            <router-link class="mui-tab-item-1" to="/home">
                <span class="mui-icon mui-icon-home"></span>
                <span class="mui-tab-label">首页</span>
            </router-link>
            <router-link class="mui-tab-item-1" to="/member">
                <span class="mui-icon mui-icon-contact"></span>
                <span class="mui-tab-label">会员</span>
            </router-link>
            <router-link class="mui-tab-item-1" to="/shopcar">
                <span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ $store.getters.getGoodsCountAndAmount.count }}</span></span>
                <span class="mui-tab-label">购物车</span>
            </router-link>
            <router-link class="mui-tab-item-1" to="/search">
                <span class="mui-icon mui-icon-gear"></span>
                <span class="mui-tab-label">设置</span>
            </router-link>
        </nav>
    </div>
</template>

<script>
    export default {
        data(){
             return {
                 flag:false
             }
        },
        created(){
            this.flag = this.$route.path === "/home" ? false : true
        },
        methods:{
            goBack(){
                this.$router.go(-1)
            }
        },
        watch: {
            '$route.path':function (newVal) {
                if (newVal === '/home') {
                    this.flag=false
                }
                else {
                    this.flag=true
                }
            }
        }
    }
</script>

<style lang="scss" scoped>
.app-container{padding-top: 40px; padding-bottom:40px;overflow-x: hidden;margin-bottom: 100px;
}
    .v-enter{
        opacity: 0;
        transform: translateX(100%);
    }
.v-leave-to{opacity: 0;transform: translateX(-100%);position: absolute}
    .v-enter-active,
    .v-leave-active{
        transition: all 0.5s ease;
    }
    .mui-bar-tab .mui-tab-item-1.mui-active{
        color: #007aff;
    }
.mui-bar-tab .mui-tab-item-1{
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-1 .mui-icon{
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-1 .mui-icon~.mui-tab-label{
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>